Nouns denoting natural phenomena

a force over an area produced by a pressure difference
strong gale
wind moving 47-54 knots; 9 on the Beaufort scale
the product of voltage and current
a light shower that falls in some locations and not others nearby
sound spectrum
the distribution of energy as a function of frequency for a particular sound source
a result
materials like aluminum or platinum become magnetized in a magnetic field but it disappears when the field is removed
the mechanical energy that a body has by virtue of its position; stored energy
breaking point
the degree of tension or stress at which something breaks
ionic beam
a beam of ions moving in the same direction at the same speed
(physics) the influence that produces a change in a physical quantity
an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
the consequence of an effort or activity
Saint Elmo's light
an electrical discharge accompanied by ionization of surrounding atmosphere
(genetics) the genetic variation within a population that natural selection can operate on
a side bond that links two adjacent chains of atoms in a complex molecule
(medicine) an immunological response that refuses to accept substances or organisms that are recognized as foreign
placebo effect
any effect that seems to be a consequence of administering a placebo; the change is usually beneficial and is assumed result from the person's faith in the treatment or preconceptions about what the experimental drug was supposed to do; pharmacologists were the first to talk about placebo effects but now the idea has been generalized to many situations having nothing to do with drugs
good fortune
a stroke of luck
greenhouse effect
warming that results when solar radiation is trapped by the atmosphere; caused by atmospheric gases that allow sunshine to pass through but absorb heat that is radiated back from the warmed surface of the earth
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